Definición

I didn't have any information about Napoleon, so I looked him up at the library. No tenía ninguna información sobre Napoleón, entonces la busqué en la biblioteca.

to look up to (one's sister): admirar (a su hermana)verb

to look up: mirar hacia arriba, levantar la vistaverb

Ejemplos

"Hannah : Ok, look up 'Geek'."

"I remind you that the previous cleaner you sent us was caught stealing the office plants, the one before her was discovered hiding under the desk of our marketing director, trying to look up her skirt, and the gentleman before that had to be brought down from the roof by the police."